I got a text from some munter along the lines of "hi hndsm. cn u get a chinky on ur wy home".
I texted her back and said "Get off your fat arse and get it yourself you fat pig".
I hope her boyfriend really got it in the neck for that one.

I once knew someone who got hold of their ex-girlfriends, new boyfriends mobile number.
Then using a "Pay as you Go" Sim card registered in a name taken randomly off the voters registration, they sent him text messages pretending to be another girlfriend. They also texted the ex-girlfriend with another Sim card pretending to be one of the boyfriends mates "grassing" him up for cheating on her. Eventually his real girlfriend dumped him as she thought he was having an affair.

Not that they were bitter about the original break up at all.

P.S. You may all say I was the person doing it. But I couldn't possibly comment.